Results 1 to 15 of 15

Thread: Need help!

  1. #1
    Senior Member
    Join Date
    May 2005
    Posts
    237

    Need help!

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi guys,

    We have a shop and a Brasilica Gradisca 2 group commercial coffee machine. Weve also got (from Primo) a burr grinder on which it says "Tipo RR45", and MAT. 7908, which was made in year 2000.

    I have two problems:

    1. On the grinder there is a huge difference (like 18 secs.) between two single clicks. Why? Are the burrs need changing?
    In one position I get 30 ml in 22 seconds, but one click and I get 30 ml in like 40 seconds. That is not good. :(

    2. Even with the same grind I get much different time out of the two group heads (of which one is for a single and the other is for a double). On the single it comes out at least 10 seconds quicker than on the double. :(

    Any help would be much appreciated.
    Cheers

  2. #2
    TC
    TC is offline
    .
    Join Date
    Oct 2004
    Location
    Melbourne
    Posts
    14,665

    Re: Need help!

    Sounds like its time for service to me. A one notch adjustment of grind may typically result in 2-3 seconds difference in shot time on your double. As I see it, there are probably a number of factors which may be influencing your final result:

    Grinder blades should be new and well maintained. When were yours last replaced? Typical flat blades may well be worn in under 200kg of beans. Also, check the flow to each group head without the portafilters mounted. If its inconsistent, you may have fouled shower screens or partially blocked restrictors which will require service.

    When you dose each filter basket (by drop), you should have a complete level fill of the basket with a gentle tapping of the portafilter handle to your palm to settle the dose. If this is not the case, adjust the drop of your grinder to ensure this happens. Then adjust grind to achieve an extraction of approx 30ml in a total of 30 seconds (including a 5 sec pre-extraction or delay on operation of the machine). I suggest this timing is set on your double portafilter.

    Basket size may be an issue. What size are your single and doubles? If you are dosing by drop, you may be overdosing or underdosing either basket. Dosing by sight will minimise these problems if your baskets are paired- eg 8gm and 16gm. We are using 12 and 18gm, our grinder set to drop 6 gm and we use 2 and 3 clicks to dose by drop. That said, the dosing chamber needs to be 3/4 full to dose accurately in this way. I recommend grinding by dose and then dosing by sight unless you can use all ground coffee within 30 min.

    Hope this helps...

    Chris

  3. #3
    Senior Member
    Join Date
    May 2005
    Posts
    237

    Re: Need help!

    Thanks for your quick reply.

    How do I know what size are my baskets? Does it say on them or do I have to just measure the weight of the coffee that I can fit in them (level to the rim like you said).

    We bought the shop around 7 months ago and the grinder hasnt been serviced since and I dont know when it was ever serviced before that. So, I guess, I better get a service on it ASAP then.

    Thanks for your input!

  4. #4
    TC
    TC is offline
    .
    Join Date
    Oct 2004
    Location
    Melbourne
    Posts
    14,665

    Re: Need help!

    Monti,

    Its not too bad a way of measuring the baskets- as when you tamp, the dosing line (groove cut 3-4mm from top) should not be visible- this is a visual indication of correct dose. Baskets are not marked with dose- experience will allow you to judge a basket by sight. As your machine is a Brasilia Gradisca, I suspect that the bean alliance may have supplied the machine??? You may consider giving them (or your coffee co. if not them) a call to get a once over on your machine?

    Grinder cleanliness is also paramount. Id suggest that you never leave any coffee whatsoever in your grinder overnight. Ground coffee is stale in under 30min. Also ensure that you wash the hopper with hot water and detergent (rinse well to remove) daily as well as wiping out the dosing chamber with a dry cloth or paper towel. I remove the collars on my grinders each week and give the blades a once over with a wire brush and/or screwdriver blade to remove rancid coffee oil deposits too...

    I offer a coffee doctor service also- but try to get a freebie service if you possibly can *;)

    Good luck!

    Chris

  5. #5
    Senior Member
    Join Date
    May 2005
    Posts
    237

    Re: Need help!

    Thanks for the help, again. Your tips are of great help.

    The coffee machine and the grinder are from Primo and they also supply the coffee. They rang the other day and said that the coffee machine is due for servicing. As we dont sell a lot of coffee like cafes (more food, but we are trying to increase the coffee sales) I thought we wouldnt need servicing as often. Rather our grider needs one ASAP.

  6. #6
    .
    Join Date
    Aug 2004
    Posts
    2,312

    Re: Need help!

    Monti,

    not wishing to steal yours, or anyone elses thunder, but these really are questions you need to refer to your coffee supplier. If you have goodwill with him, please give him the benefit of the doubt as well as first bite of the cherry with all your "coffee" concerns.

    I suspect you will find there is little wrong that a thorough lesson on how to use and or set up the equipment properly will not fix.

    In addition, we here could continue to fire details at you about what may or may not be wrong, while we are not sitting in front of the equipment, possibly sending you off on several wild goose chases, at risk of confusing you completely, getting you all worked up about this or that, *but if your supplier knows his stuff, the problem could be sorted immediately he lays eyes on the set up.

    Mind you, I hope you are not saying you havent been visited for 7 months....Reps should (I think) be picking up and attending to "set up" problems during their ***regular*** vists.....!

    If you cannot get satisfaction from you supplier, please do not hesitate to give me a call on 6280 7511. I will help you over the phone, and trust that you will remember the favour.

    Regardz,
    FC.
    www.cosmorexcoffee.com.au

  7. #7
    TC
    TC is offline
    .
    Join Date
    Oct 2004
    Location
    Melbourne
    Posts
    14,665

    Re: Need help!

    Im in agreement with you Atillo....An absolute big yeppers.....go the freebie first! *;D

  8. #8
    Senior Member
    Join Date
    May 2005
    Posts
    237

    Re: Need help!

    Quote Originally Posted by Fresh_Coffee link=1116577530/0#5 date=1116591964
    Monti,

    Mind you, I hope you are not saying you havent been visited for 7 months....Reps should (I think) be picking up and attending to "set up" problems during their ***regular*** vists.....!

    Regardz,
    FC.
    www.cosmorexcoffee.com.au
    Thanks!

    How often should a service be done for the coffee machine and for the grinder as well? Remember that we are not a cafe and not selling coffee in high volumes, but which doesnt mean that we dont want to sell quality coffee.

    Even though we have a supplier, it is nice to get oppinions/help from others as well, especially since we havent been in this line of business before.
    Talking to you lot might help us in identifying if our supplier is taking care of us like they should as we have no point of reference just yet. Also, we can ask them the right questions, and dont let them rip us off if they would be that way inclined. As, up until now, we have no previous relationship with them so we dont know what to expect and I like to be well informed and armed when dealing with all our suppliers.

    I doubt that we can get any free service, though. If they come out they will charge. We are not making much if any profit yet, so if I can fix or adjust things myself with all your help on this forum would be of great benefit to us.

    I understand everything that you guys are saying. I had done a series of courses with Danes Gormet Coffee Institute and have been reading about coffee, machines, and most things to do with coffee. I have limited practical experience though.

    Thanks for your number. I will keep it in case I need to give you a call.

    Thanks guys!

  9. #9
    .
    Join Date
    Aug 2004
    Posts
    2,312

    Re: Need help!

    Some service people will tell you you should be on a regular "service plan". Perhaps Im just old fashioned, but my personal feeling is this is hogwash designed to keep them in income, and you out of it!

    As long as you are doing your daily / weekly maintenance, you dont service anything unless it breaks down. Then its a breakdown service specific to the problem.

    Having said that, some cafe owners dont do the kind of daily maintenance they should do, so then to offer them a regular "service plan" is a good thing for them...!

    Clean your groups daily. You know how. If you do this religiously, your group seals and showers will last eans longer and when they fail, change them yourself.

    Change your water filter whenever recommended, possibly 3 or 6 monthly.

    Clean the machine all over as necessary.

    Dont fix something if it aint broke or leaking ...when it breaks or starts to leak, fix it then. A "service plan" DOES NOT STOP breakdowns happening, but attention to detail by the cafe owner / supervisor in his daily maintenance regime, does.

    Clean your grinder daily with some kind of paint brush, keep it will adjusted, manage the grinds and beans properly, and wash the hopper say weekly, and all will be well. FORBID IDLE HANDS FROM PLAYING WITH THE ADJUSTMENTS.

    ...and life will be good!

    When your coffee rep comes in on his regular visit, he should be able to pick up if something is out of adjustment & deal with it on the spot.

    Regardz,
    FC.

  10. #10
    Senior Member
    Join Date
    May 2005
    Posts
    237

    Re: Need help!

    Thanks for all the info guys. Youve been great help.
    Ill try to do all the above the best I can and the mean time well get a service guy called out for a grinder service. Maybe we need new burrs in it, as weve probably inherited someone elses problems when we bought the shop.

  11. #11
    Senior Member
    Join Date
    May 2005
    Posts
    237

    Re: Need help!

    Quote Originally Posted by 2muchcoffeeman link=1116577530/0#3 date=1116580465

    I offer a coffee doctor service also- but try to get a freebie service if you possibly can *;)

    Chris
    But Chris, you are in Melbourne and I am in Sydney.
    Thanks anyway, though.

  12. #12
    Senior Member
    Join Date
    May 2005
    Posts
    237

    Re: Need help!

    Ive just noticed that you have a website, Fresh_Coffee. I checked it out and noticed that you are in the ACT. I go down there every now and then. My partners parents live there. We are going down there next weekend. If we can, we might drop in to see you and your establishment. Is that your picture on the website? What is your name? How can I recognise you?

  13. #13
    .
    Join Date
    Aug 2004
    Posts
    2,312

    Re: Need help!

    Monti,

    I wont be there this Fri/Sat as am part of a testing panel taking a look at some diff brand / model espresso machines in Sydney, but the place is open for 3 hours on Sat mornings from from 9 to 12 if you want to drop in & have a look around.

    Will contact through the private mail system here.

    Regardz,
    FC.

  14. #14
    Senior Member
    Join Date
    May 2005
    Posts
    237

    Re: Need help!

    Hi Fresh_Coffee,

    I would like to thank you publicly for looking after and spending time with us last Saturday. We appreciated the nice coffee you offered and enjoyed your insight into coffee machines and coffee in general. I know you were very tired from your trip back from Sydney and busy, and yet, you still made yourself available to us till well after closing yours. Your establishment is very impressive and all your staff is very friendly and helpful. Your son also looked after us kindly and answered all our questions and spent time with us even though I told him that we are not here to buy anything on the day.
    We had a great time there.

    I hope many from this forum will pay you a visit and enjoy the same hospitality as we did.

    Thank you,
    Monti

  15. #15
    .
    Join Date
    Aug 2004
    Posts
    2,312

    Re: Need help!

    Behmor Brazen - $249 - Free Freight
    Hello Monti,

    I very much appreciate your kind comments.

    Regardz,
    FC.



Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •