Blender - Chopping Garlic with a Dairy Knife
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Question
I used a hand blender to crush garlic cloves that were cut with a dairy knife. (I don't remember if the knife was used within the last 24 hours - most likely not.) Has the blender become dairy? Can I use it to crush foods that were cut with a meat knife? Can food crushed by the blender from now on be cooked in a meat pot?
Answer
Hello,
Garlic cut with a dairy knife, even if the knife was not used within the last 24 hours, becomes dairy.
[Important note: This rule applies only when the knife absorbed the taste of milk in the heat of a primary vessel, for example, if it was used to cut food containing milk when the food was in a primary vessel [the vessel in which it was cooked or baked on the fire]. However, often a utensil considered 'dairy' is not truly dairy because it was used only for cold dairy foods or for hot foods that were already transferred from a primary vessel.]
If the garlic indeed became dairy, the blender that crushed it also becomes dairy.
A dairy blender should not be used to crush sharp or hot meat foods, but it can be used to crush parve foods that are not sharp, even if they will be mixed with meat foods afterward.
Source
Rema Yoreh De'ah, Siman 95, Se'if 2. Shulchan Aruch, Siman 96, Se'if 1.