Why is butter kept in the fridge and peanut butter in the cupboard?

  • 2 Replies

0 Members and 1 Guest are viewing this topic.


Offline thedoc

  • Forum Admin
  • Administrator
  • Sr. Member
  • *****
  • 513
    • View Profile
Alan asked the Naked Scientists:
Why is butter kept in the fridge but peanut butter does not need to be?

I can't make all your radio answers so I would like a reply via my email please.

Many thanx

What do you think?
« Last Edit: 16/09/2015 22:50:02 by _system »


Offline Bored chemist

  • Neilep Level Member
  • ******
  • 8853
    • View Profile
I think a big part of the answer is that peanut butter has a very low water content and that stops most bacteria.
Please disregard all previous signatures.


Offline alancalverd

  • Global Moderator
  • Neilep Level Member
  • *****
  • 4904
  • life is too short to drink instant coffee
    • View Profile
Proper (not "lite") butter has a fairly indefinite life at room temperature but melts in summer. Not a problem if you use it primarily for cooking (especially ghee, which has a very low water content) but unpalatable as a spread on bread. Even soldiers complain about mass-catering sandwiches made with brushed-on melted butter: it soaks through the bread and makes the sarnie sticky on the outside.
helping to stem the tide of ignorance