In 1913, Dole invested in a new machine invented by Henry Gabriel Ginaca that could peel and core 35 pineapples every minute. Before the invention, Dole had to contend with the slow pace of having hundreds of workers peel and core each pineapple by hand. With a fully mechanized outfit, Dole's business boomed once more. Rival pineapple companies slowly began to adopt the Ginaca machine, seeing how much Dole improved his business with the introduction of new technologies. During this period, the Hawaiian pineapple sector was at its most profitable as various small companies operating on comparatively modern small land made middling income for the operators. However, this was about to change as Dole was soon to corner the market and turn it into single mighty industry dominated by a small group of companies who mass-produced the fruit for the rest of the global market.