It is usually applied to a combustible fuel mixture. Autoignition temperatures of liquid chemicals are typically measured using a 500-millilitre (18 imp fl oz; 17 US fl oz) flask placed in a temperature-controlled oven in accordance with the procedure described in ASTM E659.
Baked Butternut Squash - Directions. 1  Preheat oven to 350 degrees F (175 degrees C). 2  Place squash, cut sides down, in a 9x13 baking dish. 3  Bake in the preheated oven until tender and easily pierced with a fork, about 1 1/2 hours.
Oil a baking tray and season the fleshy inside of the squash with salt and pepper before placing the two halves skin-side up on the tray. Roast the squash for 45 minutes then check with a fork. As for the other methods, you will know when the squash is done when the fork penetrates the flesh with no resistance.