There as many ways to break in baseball gloves as there are to cure hiccups, but which ones actually work? The most ideal technique is to simply use it as much as possible, but that takes a while. When someone gets a new baseball or softball glove, the last thing they want to do is use it only in practice.
Many people will recommend using an oil or lotion to loosen up a glove, but others believe this actually weakens the leather so much that it takes away from its long-term durability. Arizona Diamondbacks shortstop Stephen Drew told ESPN that he rubs down his new gloves with shaving cream and puts them in the oven for two to three minutes at 300 degrees.
The idea of "cooking" a new glove isn't all that uncommon, believe it or not. Both former Giants centerfielder Aaron Rowand and Angels outfielder Torii Hunter said they microwave their gloves. Former MLB first baseman Doug Mientkiewicz said he tried this method once and it melted the rawhide on his glove, so it's best to use caution with this method.
Rowand explained to the source that he soaks his gloves in the sink, puts them in the microwave for about a minute, and then catches balls out of a pitching machine for a while. Hunter said he never keeps his gloves in a microwave for more than 30 seconds and actually soaks them in a hot tub first.
A handful of other big leaguers including Seattle Mariners ace Felix Hernandez and former outfielder Vladimir Guerrero swear by the microwave technique. But, since every oven and microwave model is different, it's best to only put the glove in for a short amount of time. You can always break it in more, but you can't fix a melted glove.