#paleo Guide: How to Make Nut Butter. Raw nut butters are healthier choice. Roasting degrades the healthy, delicate Omega 3 oils naturally found in nuts. Omega 3 is vulnerable to heat, light, and oxidation but roasting mades the nut butter shelf-stable which manufacturers find desirable ignoring the loss of health benefits. | IF YOU WANT ROASTED NUTS do so at 160 to 170 degrees Fahrenheit for no more than 15 to 20 minutes. ALSO store nuts in airtight containers in the refrigerator or freezer.