• Welcome to Photrio!
    Registration is fast and free. Join today to unlock search, see fewer ads, and access all forum features.
    Click here to sign up

Thermometer Question.

Recent Classifieds

Forum statistics

Threads
201,722
Messages
2,829,089
Members
100,910
Latest member
SuninPisces
Recent bookmarks
0

Markok765

Member
Allowing Ads
Joined
Apr 26, 2006
Messages
2,262
Location
Ontario, Can
Format
Medium Format
I have 2 thermometers for the darkroom.

I don't use them really [feel temp with hand] so I was thinking of repurposing one as a cooking thermometer.

They are those prodding thermometers, going up to 300F.

If I clean them, can I use them safely in the kitchen?
 

BrianShaw

Member
Allowing Ads
Joined
Nov 30, 2005
Messages
16,978
Location
La-la-land
Format
Multi Format
If they've been in chemistry then it isn't the best of ideas. You can get a decent cooking htermometer for $10- to 20, so why risk it?
 
Last edited by a moderator:

RobC

Member
Allowing Ads
Joined
Nov 5, 2007
Messages
3,880
Location
UK
Format
Multi Format
The turkey will never know:D
 

BrianShaw

Member
Allowing Ads
Joined
Nov 30, 2005
Messages
16,978
Location
La-la-land
Format
Multi Format
Poke either one of your fowl friends in the thigh with the tip of a paring knife. If they bleed red, they aren't done; if they bleed clear, they are edible. All one really needs in a kitchen is fire and sharp knives; who needs a thermometer???
 

epatsellis

Member
Allowing Ads
Joined
Jan 1, 2006
Messages
929
Format
Multi Format
not twitching, warmer than that and go to the knife test?
 

Toffle

Member
Allowing Ads
Joined
Mar 27, 2007
Messages
1,930
Location
Point Pelee,
Format
Multi Format
All I know about thermometers is that ever since we had kids, the one in my medicine cabinet tastes funny. :D
 

BrianShaw

Member
Allowing Ads
Joined
Nov 30, 2005
Messages
16,978
Location
La-la-land
Format
Multi Format
I guess, but I would like to have a minimum safe temperature.

I think we are getting a little off topic, but since I fancy myself a rather accomplished chef...

Minimum safe temperatures have changed dramatically over the years. Yes, you want to be safe from salmonella, etc. but there are lots of ways (the one I mentioned above being only one) for assuring that food is cooked properly for safe consumption. Notice that most, if not all, professional chefs keep an instant-read thermometer in their sleeve or pocket. They are cheap and readily available. If you fear food poison please get one ASAP. If you fear chemical contamination, get a new thermometer ASAP rather then repurposing.
 

Colin Corneau

Member
Allowing Ads
Joined
Nov 20, 2007
Messages
2,365
Location
Winnipeg MB Canada
Format
35mm RF
Just use your fingers for the cooking and don't take chances with your film.
 

cmo

Member
Allowing Ads
Joined
Aug 22, 2006
Messages
1,321
Format
35mm RF
Just use your fingers for the cooking and don't take chances with your film.

EXACTLY.

But if you are a neighbour of the Simpson family and use the thermometer for the cooking, it does not make a differnce anyhow because you are close to a nuclear power plant... and Homer works there. :D
 

maart

Member
Allowing Ads
Joined
Nov 24, 2007
Messages
15
Location
Rotterdam, T
Format
Medium Format
Poke either one of your fowl friends in the thigh with the tip of a paring knife. If they bleed red, they aren't done; if they bleed clear, they are edible. All one really needs in a kitchen is fire and sharp knives; who needs a thermometer???

I agree very much with that, and I'm the cook.
Maarten Zeilmaker, Rotterdam
 

CBG

Member
Allowing Ads
Joined
Nov 21, 2004
Messages
889
Format
Multi Format
I have 2 thermometers for the darkroom.
I don't use them really [feel temp with hand] so I was thinking of repurposing one as a cooking thermometer.
They are those prodding thermometers, going up to 300F.
If I clean them, can I use them safely in the kitchen?

First off, was your hand calibrated? Is it partial or full immersion?

Seriously, any thermometer that reads to 300 is not a good choice for the darkroom. Barring some special gift of accurate manual temperature perception, you will do better with a thermometer suited for the darkroom. Keep the cooking thermometers in the kitchen. But regarding your question of re-use in the kitchen, if they have been in anything really nasty, like mercury compounds etc, I wouldn't use them at all. Some of the more common BW chemicals are rather tame in micro-doses, but you should know absolutely, utterly, exactly what you are doing before you return anything to the kitchen. Thermometers are not very expensive, so the risk just isn't worth experimenting with the health of you and others.

C
 

domaz

Member
Allowing Ads
Joined
Nov 2, 2007
Messages
572
Location
Tacoma, WA
Format
Multi Format
I tried to use one of those thermometers in the darkroom. Utterly useless because they apparently are calibrated to read lower than actual temperature. Kind of like the speedometer in cars that read a little high, so even if you think your speeding you aren't really.
 

Ralph Javins

Member
Allowing Ads
Joined
Jul 4, 2008
Messages
830
Location
Latte Land,
Format
Multi Format
Good morning;

Interesting topic and tangential diversion.

Brian Shaw made a comment about professional chefs having an intstant reading thermometer with them at all times. There was also something mentioned about salmonella, et cetera.

I think the main reason why the chefs carry a thermometer is to be able to have a ready defense when the Health Department Inspectors show up. Many of those guys do not really know that much about cooking and food preparation, so they "go by the numbers" and "I'm just doin' my job, man." They are told that the food must be brought up to "yea, that much" in temperature, so they watch the numbers. That is easier than trying to train the inspectors in recognizing what different foods look like when they are done.

On the subject of the original question, I agree that it is easier to just get another thermometer that is clean and designed for cooking.

My favorite developing thermometer was a yellow scale glass/mercury laboratory type specially provided for photographic purposes that read from about 18 degrees C to 32 degrees C and was calibrated in 1/10 of a degree C increments. That was back in the 1960's. Probably illegal by now.

Enjoy;

Ralph Javins
 

RobC

Member
Allowing Ads
Joined
Nov 5, 2007
Messages
3,880
Location
UK
Format
Multi Format
Which turkey, the one you cooked or the one you convinced to eat the Dektol gravy...:D

Hey you only have to experiment once. If the gravy looks a bit grainy then you know to give it a better clean next time. :D
 
Photrio.com contains affiliate links to products. We may receive a commission for purchases made through these links.
To read our full affiliate disclosure statement please click Here.

PHOTRIO PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Ilford ADOX Freestyle Photographic Stearman Press Weldon Color Lab Blue Moon Camera & Machine
Top Bottom