A closed rotatable extraction unit, consisting of:
- an extraction tube with a conduit connection, for inclusion of an extractable material, selected from the group:
- a first tube with a closed-end and an open-end that is sealed with a reversibly connectable cap with the conduit connection through either the closed-end or through the reversibly connectable cap;
- and
- a first combination tube with a first-section with a closed-end and a securing seal to a second-section with a reversibly connectable cap with the conduit connection through either the closed-end or through the connectable cap and optionally with a mid-section with an additional securing seal to connect the first-section to the second-section through the mid-section;
- a solution-receiving tube with a conduit connection, free of the extractable material for receiving an extract solution, selected from the group:
- a second tube with both ends closed with the conduit connection through one end of the second tube and a valve connected to the end without the conduit connection;
- a second tube with a closed-end and an open-end that is sealed with a reversibly connectable cap with the conduit connection through either the closed-end or through the reversibly connectable cap, wherein when the conduit connection is through the closed-end, the reversible connectable cap is in the form of a cup that includes a volume to collect an anticipated volume of an extract;
- and
- a second combination tube with a third-section with a closed-end and a securing seal to a fourth-section with a reversibly connectable cap with the conduit connection through either the closed-end or through the reversibly connectable cap, wherein, when the conduit connection is through the closed-end, the reversible connectable cap is in the form of a cup that includes a volume to collect an anticipated volume of an extract, and optionally a second mid-section with an additional securing seal to connect the first-section to the second-section through the second mid-section;
- a conduit directly connected to the conduit connections of the extraction tube and the solution-receiving tube with the conduit selected from the group:
- a flexible hose as a single portion or a first portion and a second portion, where single portion or the first portion and the second portion include one or two interruptions;
- and
- a bent rigid pipe that is a single portion or is partitioned into a first portion and a second portion wherein at least one portion is bent one to three times where the single portion or the first portion and the second portion include one or two interruptions;
- and
- a conduit's connectivity selected from the group:
- uninterrupted between the conduit connections when the solution-receiving tube has a valve;
- uninterrupted between the conduit connections with a conduit attached two-way valve;
- interrupted, where the one or two interruptions are by one or two pairs of complementary quick-disconnect valves;
- and
- interrupted, where one of the one or two interruptions is by a three-way valve and the other of the one or two interruptions is by a pair of complementary quick-disconnect valves;
- wherein the pair of complementary quick-disconnect valves, the three-way valve, or the attached two-way valve resides at any position within the length of the conduit including, but not limited to, directly connect to the conduit connection of the extraction tube and the conduit connection of the solution-receiving tube, wherein a rotation of all or a portion of the extraction unit places the extraction tube at a first position above the solution-receiving tube for a liquid solution transfer and the extraction tube at a second position of equal height or below the solution receiving tube for a solvent vapor transfer.