chemical industries, inc.
"Where Excellence Is Not Optional"
17040 RAPIDS ROAD P.O. BOX 430 BURTON, OHIO 44021
440/834-4408 FAX: 440/834-1142
Visit us on the web: www.troychemical.com
Established 1971
August 23, 2011
Page 1 of 3
To: New French Bakery
For: Caroline Nyagaka
From: Jim Henningsen
Re: Sanitation Service Call Report of 8/23/11
Hobart De-scale Procedure
7:00 am – 7:30 am connected poly tubing to washer and sanitizer chemical pump for de-scale procedure. Rinsed, drained and re-filled Hobart with water.
7:30 am – 8:45 am ran Troy 2108 Scale & Rust Remover through sanitizer pump/rinse nozzles and washer. Ran at pH of 2.
8:45 am – 9:00 am ran water through sanitizer pump/rinse nozzles and washer to neutralize pH to proper range (5 – 11) for discharge to drain. pH at end of this process was 5.5.
9:00 am – 9:15 am rinsed Hobart, drained and re-filled with water.
9:15 am re-connected Troy 1623 Sanitizer poly tubing to sanitizer chemical pump and ready for service.
Sanitizer/Rinse spray nozzles
As facing the exit of Hobart:
- the 2 spray nozzles each on bottom right and right side all show good spray/fan pattern.
- the 2 spray nozzles each on right & left top, left side and bottom left are streams instead of
preferred fan pattern.
Ideally, during de-scale, spray nozzles should be removed. However, due to the age of the
washer, I am not sure if nozzles can be removed easily without adversely affecting the threads
and/or the ability to re-connect the nozzles. From my understanding, Hobart no longer supplies
replacement parts for this washer so I was cautious about this.
If maintenance feels this can be done safely, I suggest removing and running water only through
the risers (water pipes) with the intent to remove possible scale that might be loose and clog
the nozzles. This can be done by removing chemical pick up tube from Troy 1623 Sanitizer and
inserting into pail of water and then activating the Hobart washer (which activates the pump).
Page 2 of 3
If nozzles can be removed safely, a tiny wire can assist in removing any foreign matter
clogging the nozzles. If time permits, they can also be soaked for an hour or two in Troy 2108
Scale & Rust Remover. Ideally, it is better to have two sets of nozzles – one to use and one to
soak.
Only 2/3 gallon of Troy 2108 Scale & Rust Remover was used and there is no cost to New French
Bakery for product or de-scaling service.
Hobart Sanitizer Readings
Initial reading after start-up was 100 ppm. After adjusting chemical feed pump, second reading
was 400 ppm. After adjusting chemical feed pump again, the third reading was 200 ppm, the
proper target. I will re-check again on Monday, August 29.
Comments/Observations/Suggestions
Hobart
1) trays sometimes get stuck/off track upon entering the washer and cause back-ups. This is
manually corrected by operator. Not sure what can correct/improve this.
2) trays entering sanitizer rinse stage sometimes come off track and knock rinse riser out of
brackets and riser angles back into previous wash stage, causing sanitizer nozzles to
become ineffective.
Not sure what can correct/improve trays from straying off path. As for riser disconnecting, I
suggest maintenance take a look at. Maybe a metal or plastic band/support could be attached to
riser to prevent coming loose?
LVO Pan Washer
1) Ramone said his boots are slippery while working around the LVO area. Perhaps other boot
alternatives are available that are not as slippery? If you need assistance let me know and can
check what successfully used at other food processing accounts in wet environments.
2) for worker safety and plant space utilization, it would be good to have a better way to
load/unload pans on carts into LVO. I will check with LVO for alternatives. Maybe some kind
of platform, with tracks for wheels, that would sit on floor just prior to LVO entrance and with
some kind of manual or electric lift to LVO level and then racks pushed in from there?
Page 3 of 3
3) when hamburger bun pans are run in LVO, excessive foam is created. While maybe not a
major concern, it does spill on to floor and creates extra cleaning (labor) periodically
thoughout the day. We have a food grade defoamer that could be manually added to LVO
if/when needed to prevent excessive foam. If you want a sample, let me know.
LAFFERTY SPRAY ALL SYSTEM INSTALLATION
1112 degreaser 4% grey tip
1623 sanitizer 200 ppm clear tip
In case needed for adjusting, metering tips are in plastic zip lock bag in sanitation chemical parts
bin in maintenance store room downstairs
ST. LOUIS BRANCH OFFICE: 848 COURTWOOD LANE - ST. LOUIS, MISSOURI 63011 - TELEPHONE: 636/891-8012 - FAX: 636/891-8013
ST. PAUL BRANCH OFFICE: 1506 BUERKLE ROAD - ST. PAUL, MINNESOTA 55110 - TELEPHONE: 651/787-0717 - FAX: 651/787-0719