All measurements were conducted on a Bruker Avance III 400 spectrometer operating at a 1 H Larmor frequency of 399.92 MHz (equal to a 2 H Larmor frequency of 61.40 MHz). Data processing was conducted in Matlab. Temperature-dependent measurements were performed in between 10 and 85 • C (the exact range being determined by the main phase transition temperatures of the sample components). Sample temperature was thereby based on setupspecific calibrations with ethylene glycol, and samples were heated and cooled at constant rates (realized by the Bruker software), usually 1 or 2 K/min. 1 H MAS measurements were conducted at 5 kHz MAS using a standard 4 mm double-resonance MAS probe. Singlescan 1 H spectra had a spectral width of 100 kHz. Free-induction decays (FIDs) were zero-filled, Fourier-transformed, and the lipid and water peaks were fitted with Lorentzian lineshapes to calculate the water content from the peak integrals. A 5 mm broad-band probe was used for static 2 H NMR experiments, employing a quadrupole echo sequence . The echo delay was 40 µs, the relaxation delay was 1 s (or 50 s in a select case), and the 90 • pulse width was around 4.3 or 6.0 µs. Dependent on sample composition and temperature/quadrupolar coupling strength, 1024 to 81920 scans with a spectral width of 1 MHz were acquired for each spectrum. The FIDs were processed and Fourier-transformed using Matlab, starting from the echo maximum.