HC getting you water with the vinegar to 180 *F is paramount to getting a great product that releases from the bottom of the pann easily. To hot, 210* and you will have problems. Another secret some use is spraying the pan with pam and then adding the water and heating.
Here is how I do hollandaise from scratch and I think it is much better than the packaged stuff. You need an immersion blender but it is foolproof and fast
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