In this March 5, 2020, file photo, Beverly Thurber, of Lilac Ridge Farm, in Brattleboro, Vt., checks the density of the sap that is being boiled for maple syrup. The coronavirus pandemic forced some states to cancel their annual maple season celebrations in 2020, but some New England producers with safety precautions in place are welcoming back the public in 2021. (Kristopher Radder/The Brattleboro Reformer via AP)

In this March 9, 2016, file photo, a bottle of maple syrup is displayed at the Merrifield Farm and Sugar Shack in Gorham, Maine. The coronavirus pandemic forced some states to cancel their annual maple season celebrations in 2020, but some New England producers with safety precautions in place are welcoming back the public in 2021. (AP Photo/Robert F. Bukaty, FIle)

In this March 10, 2016, file photo, Jason Landry loads wood into the firebox as he boils down sap at his sugar house to make maple syrup in Loudon, N.H. The coronavirus pandemic forced some states to cancel their annual maple season celebrations in 2020, but some New England producers with safety precautions in place are welcoming back the public in 2021. (AP Photo/Jim Cole, File)