What is the water activity of jam?

What is the water activity of jam? Many old-school jam recipes require cooking the fruit-and-sugar mixture for a prolonged period of time at 220°F (104°C). This is meant to do two things: reach an 80% water activity (the point at which water activity is reduced enough to prohibit pathogen growth) and get the jam to […]

Where did James Maxwell make his discovery?

Where did James Maxwell make his discovery? Pioneer in Electromagnetism Maxwell had continued his research on color and made groundbreaking discoveries around gas velocity. It was during Maxwell’s time at King’s College that he began to share revolutionary ideas around electromagnetism and light. What did Faraday allow the 96 year old woman before death? He […]

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