You can speed this up by simply warming the oil in a clean pot with a several garlic cloves. Peeled but not cut or smashed. Warm it for about 10 min on the lowest stove setting. Then let it cool and bottle it back up.
Discussion
If we ever run out, I'll give that a try. We don't want to have to go without this staple for longer than a few days.
We usually keep at least two bottles in circulation and start the next batch when we get down to about a bottle's worth of oil between the two containers. So far we've never run completely out, but there was a close call once. Once!